v°^ ^ HYDROCHARITACEAE 25 



NAJAS PALUSTRIS Blanco Fl. Filip. (1837) 660; Rendle in Trans. Linn. 

 Soc. Bot. 5 (1899) 427, Engl. Pflanzenreich 7 (1901) 18; Merr. Sp. 

 Blancoanae (1918) 57. 

 Najas lobata Blanco Fl. Filip. ed. 2 (1845) 459, ed. 3, 3 (1879) 65. 

 Najas foveolata A. Br. ex Magnus Beitr. (1870) 7; Rendle in Trans. 

 Linn. Soc. Bot. 5 (1899) 416, t. 31, f, 139-lU, Engl. Pflanzenreich 

 7 (1901) 15. 

 Najas tenuifolia Naves Novis. App. (1880) 297, non R. Br. 

 Luzon (Union, Rizal, Laguna, Tayabas), Merrill 5109, Sp. Blancoanae 

 519, Elmer 1U20, Whit ford 837, B. S. 24079 Ramos. In shallow stagnant 

 fresh water at low altitudes. India to Japan southward to Timor. 

 Local names: Aragan-tamnai (Ilk.); rigmau (Tag.). 



DOUBTFUL AND EXCLUDED SPECIES 



Najas falciculata A. Br. in Journ. Bot. 2 (1864) 278, /. 4; Rendle in 

 Trans. Linn. Soc. Bot. 5 (1899) 417, t. 32, f. U5-151, Engl. Pflan- 

 zenreich 7 (1901) 15. 

 Manila, Mertens fide A. Braun 1. c. The type is an Indian specimen 

 and I strongly suspect that the Philippine specimen referred here by A. 

 Braun is Najas palustris Blanco. 



Najas indica Cham.; Schauer in Nov. Act. Acad. Nat. Cur. 19 (1843) 

 Suppl. 1: 425. 

 The record was based on a specimen from Laguna de Bay, collected 

 by Meyen. The species is known only from India. 



ALISMACEAE 

 1. SAGITTARIA Linnaeus 



SAGITTARIA SAGITTAEFOLIA Linn. Sp. PI. (1753) 993; Naves Novis. 



App. (1882) 298; Micheli in DC. Monog. Phan. 3 (1881) 66; Buche- 



nau in Engl. Pflanzenreich 16 (1903) 46; Merr. in Philip. Journ. 



Sci. 2 (1907) Bot. 421, Sp. Blancoanae (1918) 58. 



' Alisma sagittifolium Llanos Frag. 'PI. Filip. (1851) 69; F.-Vill. & 



Naves in Blanco Fl. Filip. ed. 3, 4 ' (1880) 51, non Willd. 

 Luzon (Pangasinan, Nueva Ecija, Tayabas, Camarines, Albay, Sor- 

 sogon), Catanduanes, Samar, Leyte, Mindanao (Lanao), Merrill Phil. PI. 

 982, Elmer U339, Wenzel 1228, 1521, Clemens 888, B. S. 30161 Ramos, 

 10703 McGregor. In fresh-water swamps, rice paddies, etc., at low and 

 medium altitudes. Europe through Asia to Japan, southward to Java. 

 Local names: Gauai-gauai (S. L. Bis.); tikog (Bik.). 



excluded genera 

 LiMNOPHYTON OBSTUSIFOLIUM Miq. ; Naves Novis. App. (1882) 298. 

 LoPHiocARPUS GUYANENSis Micheli; Naves Novis. App. (1882) 298. 



HYDROCHARITACEAE 



1. HALOPHILA Thouars 



HALOPHILA BECCARII Aschers. in Nuov. Giorn. Bot. Ital. 3 (1871) 302; 

 Merr. in Philip. Journ. Sci. 7 (1912) Bot. 228, Fl. Manila (1912) 

 70. 

 Luzon (Rizal), Merrill 8045. In brackish fish ponds. Borneo. 



